<template>
    <el-dialog :close-on-click-modal="false"
               :title="!dataForm.areaId ? '新增' : '修改'"
               :visible.sync="visible">
        <el-form :model="dataForm"
                 :rules="dataRule"
                 @keyup.enter.native="dataFormSubmit()"
                 label-width="100px"
                 ref="dataForm">
            <el-form-item label="地区名称"
                          prop="areaName">
                <el-input maxlength="50" placeholder="请输入地区名称" show-word-limit v-model="dataForm.areaName"></el-input>
            </el-form-item>
            <el-form-item label="上级地区"
                          prop="parentId">
                <el-cascader :options="areaList"
                             :props="categoryTreeProps"
                             @change="handleChange"
                             change-on-select
                             expand-trigger="hover"
                             filterable
                             v-model="selectedOptions">
                </el-cascader>
            </el-form-item>
        </el-form>
        <span class="dialog-footer"
              slot="footer">
      <el-button @click="visible = false"
                 size="mini">取消</el-button>
      <el-button @click="dataFormSubmit()"
                 size="mini"
                 type="primary">确定</el-button>
    </span>
    </el-dialog>
</template>

<script>
    import {treeDataTranslate} from '@/utils'
    import {Debounce} from '@/utils/debounce'

    export default {
        data() {
            return {
                visible: false,
                roleList: [],
                dataForm: {
                    areaId: '',
                    areaName: null,
                    parentId: null,
                    level: null
                },
                page: {
                    total: 0, // 总页数
                    currentPage: 1, // 当前页数
                    pageSize: 20 // 每页显示多少条
                },
                dataRule: {
                    areaName: [
                        {required: true, message: '区域名称不能为空', trigger: 'blur'},
                        {pattern: /\s\S+|S+\s|\S/, message: '请输入正确的区域名称', trigger: 'blur'}
                    ]
                },
                areaList: [],
                categoryTreeProps: {
                    value: 'areaId',
                    label: 'areaName'
                },
                selectedOptions: []
            }
        },
        methods: {
            init(areaId) {
                this.dataForm.areaId = areaId || 0
                this.visible = true
                this.selectedOptions = []
                this.$nextTick(() => {
                    this.$refs['dataForm'].resetFields()
                    if (this.dataForm.areaId) {
                        this.$http({
                            url: this.$http.adornUrl('/admin/area/info/' + this.dataForm.areaId),
                            method: 'get',
                            params: this.$http.adornParams()
                        }).then(({data}) => {
                            this.dataForm = data
                            this.selectedOptions.push(this.dataForm.parentId)
                            this.categoryTreeProps.areaId = this.dataForm.areaId
                            this.categoryTreeProps.areaName = this.dataForm.areaName
                        })
                    }

                    this.$http({
                        url: this.$http.adornUrl('/admin/area/list'),
                        method: 'get',
                        params: this.$http.adornParams()
                    }).then(({data}) => {
                        this.areaList = treeDataTranslate(data, 'areaId', 'parentId')
                    })
                })
            },
            // 表单提交
            dataFormSubmit: Debounce(function () {
                this.$refs['dataForm'].validate((valid) => {
                    if (valid) {
                        this.$http({
                            url: this.$http.adornUrl('/admin/area'),
                            method: this.dataForm.areaId ? 'put' : 'post',
                            data: this.$http.adornData(this.dataForm)
                        }).then(({data}) => {
                            this.$message({
                                message: '操作成功',
                                type: 'success',
                                duration: 1500,
                                onClose: () => {
                                    this.visible = false
                                    this.$emit('refreshDataList', this.page)
                                }
                            })
                        })
                    }
                })
            }),
            handleChange(val) {
                this.dataForm.parentId = val[val.length - 1]
            }
        }
    }
</script>
